Polyurethane polymer having bisphenol group and photoimageable composition containing the same
申请人:Eternal Chemical Co., Ltd.
公开号:EP1840146A1
公开(公告)日:2007-10-03
The present invention provides a polymer having the structure of formula (I)
wherein n, R1, R2, R3, R4, R5, R6, a, b and c are as defined in the specification. The present invention also provides a negative-acting photoimageable composition comprising the above-mentioned polymer of formula (I), which is suitable for the fabrication of printed circuit boards.
本发明提供了一种具有式 (I) 结构的聚合物
其中 n、R1、R2、R3、R4、R5、R6、a、b 和 c 如说明书中所定义。本发明还提供了一种包含上述式(I)聚合物的可负作用光成像组合物,该组合物适用于印刷电路板的制造。